- First of all, Go to the options of the Settings app on your iPhone and Select the options, General.
- Then, Scroll down and choose the options of Home Screen Layout
- After that, Under the section of Hidden Apps, choose the button Edit which is present at the top right corner of your screen.
- At last, Try to remove the toggle from each app that you want to display on your iPhone.
Also read this post:- https://worldzo.net/iphone-contacts-disappeared/